Leather-staking machine.



F. F. SLOCOMB'. LEATHER STAKING MACHINE. APPLscATmN man MAR. 21. 1912.

Patented June 4, 1918.

3 SHEETS-SHEET] i nvENToR F. F. SLOCOMB.' LEATHER STAKING MACHINE.APPLICATION HLED MAR. 2r. 1912.

Patented J 111164, 1918.

3 SHEETS-SHEET 2.

ATTORNEYS F. F. SLOCOMB.

LEATHER STAKING MACHINE.

APPLICATIUNEHLED MAR.21.1912.

3 SHEETS-SHEET 3.

. 19268963?. Patented June 4, 1918.

uw J E* sans rica.

f LEATHER-maldiveMACHINE.

To all 'whom t may concern."

Be it known that 1,'FRANK F. SLocoM, a citizen of the UnitedvStates,fresiding in the city 4andl county" of Philadelphia, State ofPennsylvania, have invented a new and useful Leather-Staking Machine, ofwhich the following isia specification.' f Y My invention consists of animproved atf tachment for leather-staking machines.

It further consists of an improved means for adjusting theleather-engaging means of the upper jaw of such machine.

It further consists of improved means for taking up wear ofy thejournals of the rollers in the upper jaw.

It further consists of other novel features of construction, all laswill 4be hereinafter fully set forth.

` The annexed drawings and the following description setforth in detailone mechanical formembodying the invention, such dev tail constructionbeing but one -of various mechanical forms in which the principle ofthe` invention lmay Ibe used. i In said annexed drawings 2+' l f Figure1 represents a side elevation of as much of a'leather-staking machine`as will illustrate the application'of my invention'.

Fig. 2 represents a top plan view of the outerend' of 'the upper jawofthe machine and the leather-'engaging rollers upon the same. f

Fig. Srepresents a side view of -said parts'l F igxl represents 'a4front viewof the same.'

Fig.V arepresents ya topfplan view of the bracketand bearings forth'eouter roller.

Fig. 6 represents a plan view of the bracket for thef inner roller. j

Fig. 7 represents a sectional detail view of a bearing for the journalsof the rollers.y

Fig. 8 represents a side view ofthe end of the upper jaw of a stakingmachine,

showing another embodiment of my invention.

Fig. 9 represents a top parts. Y

Fig. 10represents a front view of sai parts.

plan view of said Fig. 11 represents a side view of the end of the upperjaw of the machine, illustrating still another embodiment of theinvention.

While my improvements may be applied to several types ofstaking-machines, I have illustrated them as applied to the machine forwhich'Lette'rs Patent No, 604,560, were Specificationof Letters Patent.

Application filed March 27, 1912. Serial No. 686,687.

granted to myself and James Craig onMay ann-1898.' Y Referring tothedrawings, the reference numeral 1 indicates the frame lofthenia-` chinehaving the reciprocating'upperand lower jaws, 2 and 3,' which neednot'b`e described, being the same as those illustrated and described insaid above patent. The machine vhas the usual breast-roll,'4,`-and twostaking-blades, 5 and 6,' are supported, upon the lower jaw, oneadjustablein its rel'ationrto the other, longitudinally of the machine,by adjusting screws, 7, or` other means.- f f j y A T-shaped bracket, 8,has two longitudi-A nal slots', 9, in its fiat shank, through which passadjusting and'fastening' bolts, 10f,pass` ing through the "outer end ofthe upper jaw and having nuts, 11, and washers,'12, for clamping theshank of thebracket to the under-side ofthe upper jaw. *Two perfo`vrated ears, 13', project downward from the side-edges of the flat;shank. f Thev endsof the transverse fhead` of thev bracket have slots,14, and guide-recesses, 15, :are formed in the under-sides of saidvends."'=y Conical bearings, 16, have screw-threaded sockets, 17', upontheir uppervsid'es,V and rectangular. flanges, 18,1upon 'theupperfe'nds` voffsaid sockets are movable i'n the guidelrecesses.Screw-bolts, `19, pass 'through theslotsf` in the cross-head and intothesocketto'ladjust the bearings transversely to the jaw and lto thelmachine. A roller, 20, has vconicalfjournals, 21,' which fit and turn inthe conical bearings, and wear onfsaidf journals and bearings may betaken up by adjustingthe bearings and theirA bolts in the slots in the'cross-head. l f

A bracket, 22,'has its shank forked: to

form arms, 23,' having longitudinal slots,

24, through which passes a bolt, 25 having av nut, 26, andv which boltalso lpasses through;

downward and is formed with a cross-head 22", inclined to the verticalplane and formed with slots, 27,' inits ends and with rectangular'guideerecesses, 28,` in the forwardly and downwardly facing side.Coni-4 cal bearings, 29, similar tothe bearings 1.6 in thefirst-described bracket, 'have' screw# threaded sockets,-30,` andre'ctangular` flanges movable in the guide-recesses. Screw-bolts, 31,pass through the slots in the inclined cross-head and into the socketsupon the bearings. A roll, 32, is journaled with its conical journals,33, in the latter bearings.

A screw-bolt, 34, forming an adjustable abutment'is threaded in aperforation, 35, in the cross-head of the upper bracket and bears withits end in a step, 36, upon the lower bracket. Y

In Figs. 8, 9 and 10 is illustrated a slightly different form of myinvention, in which the lcross-head, 22X, of the lower bracket is bentdown into a vertical plane and a blade, 37, secured to the forward faceof said cross-head by means of screwbolts, 38, and a clamping plate, 39,the bolts passing through such clamping plates and through kverticalslots', 40, in` the blade, into the cross-head.

The tension members for exerting tension upon the skin to be staked,-therollers in the form illustrated in Figs. l to 7, included, and theroller and blade of the form illustrated in Figs. 8, 9 and 10,-and bymeans of which the skin is more or less flexed over the blades accordingto the relative proximity of the means to each other and to the bladesof the lower jaw, being adjustable longitudinally upon the upper jaw,admit of the flexure of the skin over the edge of the staking-bladebeing adjusted to a greater or less degree, whereby the staking action Aupon the skin is increased or decreased.

under side.

Thisadjustment, as well as the longitudinal adjustment of the bladesupon the lower jaw, also admits of the elements being accuratelyadjusted according to the thickness of the skins to be staked.

As the operation of a staking machine is well known, it is not deemednecessary to enterinto a detailed description of the same. As the openjaws advance forward, the skin is inserted between them, whereupon theyclose and move rearward, dragging against both sides 'of the skimtherollers against the upper side and the blades against the When the jawsarrive at the rear extreme of their reciprocation, they open and moveforward, again grasping the skin when they arrive at the forward extremeof their movement. The operator holds vthe skin against the rearwarddrag of the jaws by clamping it between his body and thebreast-roll, andshifts its position when the jaws are open.

Any wear on the journals of the rollers or their bearings may be takenup by moving the bearings inward, toward one another, so that therollers will run true and cause the blades to act uniformly on theskins, which is of great importance in staking skins on a machine toinsure uniformity of the texture of the skins.

In Fig. 1l is illustrated a slightly different form of the upper bracket8, illustrated in Figs. 1, 2, 3, 4 and 6, the bracket having its T-headupwardly inclined to provide oblique adjustment for the roller insteadof straight vertical.

Other modes of applying the principle of my invention may be employedfor the mode herein explained. Change may therefore be made as regardsthe mechanism thus disclosed, provided the principles of constructionset forth, respectively, yinthe following claimsare employed. c

Having thus described my invention, what I claim as new and desire tosecure by Let.- ters Patent, is

l. In a leather staking machine, a lower jaw, a plurality of transversestaking blades upon said jaw, means for relatively adjusting the samelongitudinally to said jaw, an opposed upper jaw, transverse Stakingmembers upon said upper jaw and arranged to alternate with said blades,a single adjusting member to effect the relative vertical adjustment ofthe upper jaw staking members, and means for relativelyandlongitudinally adjusting each of said staking members longitudinallyto said upper jaw.

2. In a leather staking machine, a lower jaw, a plurality of transversestaking blades upon said jaw, means for relatively adjusting suchbladeslongitudinally to said jaw, an upper jaw, transverse stakingmembers arranged upon said jaws to alternate with said blades, means forrelatively and longitudinally adjusting such members longitudinally tosaid jaw, means to effect the relative vertical adjustment of saidstaking members, a plurality of yfastening devices common to said upperjaw and saidv staking members forsecuring the latter ixedly in theirlongitudinally adjusted position, and

a transverse fastening device common tosaid adjusting means for Isaidstaking devices for securing the latter-with respect to through. the jawand through the slots in.

the shank of said bracket and having means for clamping the latter tosaid jaw, bearings movable on the ends` of the cross-head of said jaw,bolts passed through the slots in the cross-head and engaging saidbearings, a roller having its journals in said bearings,

a bracket having a forked shank formed with longitudinal slots in itsarms and a downwardly curved forward end formed with an inclinedcross-head having slots iny its ends, a bolt passed through the slots inthe arms of said bracket and through the Aears of said former bracketand having means for clamping said parts in adjusted position, bearingsmovable on the endsof the inclined cross-head, bolts passed through theslots in said cross-headfand engaging said n b ear in, ;s,'andA astaking' device having its journals in said bearings.l l l i 4. In aleather staking machine,"a'brackfet formed with'a cross-head 'havingslots in its ends and guide-recesses,` laterally extending bearingsformed with upwardly extending. screw-threadedv soclnts having flangesmovable in said. guide-recesses, screwbolts passed through the; slotsofthe vcrosshead and engaging the threaded portions of said soc ret's,and a roller h'aying at its exitreinities ournals mounted insaidbearings.

5. In aleather-staking machine, an upper jaw, a bracket secured theretoyand having a plurality of longitudinally extendingslots therein,fastening devices common tothe slots of said bracket and said upper jaw,depending lugs on the sides of said bracket, Va staking device mountedin the forward por- 'tion of said bracket, a second bracket locatedbelow said bracket and having forked arms provided with slots therein,fastening de vices common to said brackets, and a staking device securedto the forwardextremity fof said lower bracket. i A

6. In a leather-staking machine,l:aja w having a bracket secured theretoand provided in its outer extremities with elongated slots therein,guide recesses on the under side of said bracket, laterallyextended'bearings having upwardly projecting screw threaded sockets therein,flanges on said sockets adapted to be guided insaid recesses,screw-threaded bolts common'to said slots and threaded sockets, and astaking roller having journals at its extremities, said journals beingrotatably mounted in said bearings.

7. In a leather-staking machine, a jaw having a bracket secured theretoand provided at its outer under portions with guide recesses therein,laterally extending bearings, having upwardly projecting screwthreadedsockets, Hanges on said sockets adapted to be guided in said recesses,adjustable fastening devices common to said bracket and sockets, and a.staking roller having journals at its extremities, said journals beingrotatably mounted in said bearings.

8. In a leather-staking machine, a jaw having a bracket secured theretoand provided in its outer forward extremities with elongated slotstherein, guide recesses on the under side of said bracket, laterallyextended bearings having upwardly projecting screw threaded socketstherein, flanges on said sockets adapted to be guided in said recesses,screw-threaded bolts common to said slots and threaded recesses, astaking roller having ournals at its extremities, said journals beingrotatably mounted in said bearings, andQm'eans for securing saidbrackets withrespect 'to each other in their longitudi- 'nallyadjustedzposition, the forward end of said lowerV bracket .beinginclinedv downwardly and` outwardly.

i 9.' In a leather staking machine, an upper jaw, a substantially Tshapedi bracket secured thereto, 'and having in its shank: alonvforked"bracket below said former' bracket andr adjustable with respectthereto,fasteningdevices' common to said ears and second ,blCketsanadjustable abutnent'to vary the relative" position= of theforwardportions of saidjbracke'ts', and staking devices secured in the forivardportions of said brackets. j 1.0.' Ina leather staking machine, an upper13W, al substantially T shaped bracket se- "curedf theretojand havingin.its'shank a longitudinally extending slot, fastening devices comr'nonlto saidV jaw and shank and pe"rinitting longitudinal yadjustment of thelatter, vaperturedl ears" von said shank, a second forked`4 bracketbelow said former bracket andl adjustable with respect vthereto,fastening devices common to said ears and second bracket', an adjustableabutment'coperating 'with said lsecond bracket to limit the ino'veine'ntVthereof toward the upper jaw,'and "s`takingdevices secured in the'forward `-"p'ortions ofI said brackets, in combination witli a lowerjaw, staking devices lon saidv4 lowerijzuv,v and means for justing ythestaking devicess'of said lower jaw, with respect to' the staking devicescarried by said upper jaw l1. In a leather staking machine, a stakingjaw, a bracket secured thereto, detachable and adjustable bearingssecured to the outer under portions of said bracket, said bearings beingjuxtaposed to each other in alinement and having their widest portionsfacing each other, screw threaded sockets extending upwardly from saidbearings, threaded fastening devices common to said sockets and theextremities of said bracket, a staking roll located below said bracketand between said bearings, and journals on said roll adapted to fit andenter said bearings.

l2. In a leather-staking machine, a staking jaw, a bracket securedthereto, detachable and adjustable bearings secured to the outer underportions of said bracket, said bearings being juxtaposed to each otherin alinement, screw threaded sockets extending upwardly from saidbearings, threaded fastening devices common to said sockets and theextremities of said bracket, a staking roll located below said bracketand between said bearings and journals on said roll adapted to fit andenter said bearings, in combination with a second bracket below saidformer bracket, means for enabling said latter bracket to belongitudinally adjusted with respect to said former bracket, and astaking device for said bracket.

13. In a leather-staking machine, a jaw, a substantially T shapedbracket secured thereto and provided at its inner end with elongatedslots and at itsouter extremities also with elongated slots therein,recesses on the forwardunder sides of said bracket, laterally extending.bearings having upwardly projecting screw threaded sockets therein,flanges on said socketsy adapted to be guided insaid recesses, threadedbolts commento said slots and threaded recesses, a staking roller havingjournals at its extremities, said journals being 'rotatably mounted insaid bearings, a lower bracket longitudinally adjustable with respect tosaid upper bracket, means for securing said brackets with respectvtoeach other in their longitudinally, adjustable positions, the forwardend of said lower bracket being in'- clined downwardly'and outwardly, astaking device secured in the forward extremity of said lower bracket,and va screw threaded bolt adjustably mounted in a cross head of thefirst mentioned bracket and having its end bearing upon the lowerbracket.

14. In a leather staking machine, a staking jaw, a bracket adjustablycarried thereby, a 'staking tool carried by saidy bracket, a secondbracket adjustably carried by said first bracket, a staking tool on thesecond bracket, and an adjustable abutment vcarried by one bracket andengaging the other bracket to limit relative movement of the forwardportion of said brackets.

15. In a leather staking machine, a staking jaw, a bracketthereonxhaving laterally extending guides, journals adjustable/.in saidguides, al roller mounted in said journals, a second bracket having itsinner end forked'andy adjustably connected with said first bracket, andvhaving a cross head provided at its forward end with lateral guides,journals adjustable in said cross head guides, a lroller mounted in saidlast named journals, and an adjustable abutment carried by one bracketand bearing against the other bracket. 16. In a leather staking machine,a staking jaw, a bracket thereon having laterally extending guides,journals adjustable in said guides, a roller mounted in said journals, asecondbracket having its linner end forked and adjustably connected withsaid first bracket, and having a cross head j inclined to the verticaland provided at its forward end with lateral guides, journals adjustable4in said cross head guides, a roller mounted in said last namedjournals, and an 'adjustable abutment carried by one bracket and bearingagainst the other bracket.

FRANK F. sLocoMB.

Witnesses:

C. D. MGVAY, N. BUSSINGER,

Copies of thispatent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C. i

